Deringer Model 20 2 1/2'' 4'' Backflow Repair Video YouTube

Deringer 20. Deringer 20/20G Ames Fire & Waterworks Ames Deringer™ 20 and 20G Double Check Valve Assemblies are designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backpressure and/or backsiphonage conditions. The DeringerTM 20 Double Check Valve Assembly is designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backpressure and/or backsiphonage conditions Features• Intergral shutoff valves indoor/outdoor application• 100% stainless steel housing• Tamper-resistant test cocks• Patented Dual-actionTM check modules- Poppet action at low flow.

This 4 inch Ames Deringer (TM) 20 double check valve backflow preventer assembly is designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backflow due to backpressure and/or backsiphonage conditions The Deringer 20 Double Check Backflow Preventer prevents non-health hazard pollutants from entering a potable water supply system when backpressure and/or backsiphonage conditions occur.The smallest, lightest, most economical, best performing, and only all stainless steel backflow preventer

DERINGER 20X 4 Ames Fire & Waterworks

The Deringer 20 Double Check Backflow Preventer prevents non-health hazard pollutants from entering a potable water supply system when backpressure and/or backsiphonage conditions occur.The smallest, lightest, most economical, best performing, and only all stainless steel backflow preventer Double Check Valve/Double Check Detector Assemblies Ames Deringer™ 20 and 20G Double Check Valve Assemblies are designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backpressure and/or backsiphonage conditions.

Deringer 20/20G Ames Fire & Waterworks. Specification Deringer 20 Double Check valve shall use two independent Dual-action check modules and two integral resiliently seated shut-off valves, all of which shall be contained within a single rigid valve housing constructed entirely of 304 stainless steel. Deringer 20/30 2 to 4 inch Maintenance Instructions Deringer 20/30 6 to 8 inch and 20X/30X 4 to 6 inch Maintenance Instructions Deringer 40/50 2 to 4 inch Maintenance Instructions

Deringer 20/20G Ames Fire & Waterworks. The Deringer 20G Double Check Backflow Preventer w/ OS&Y Gate Valves prevents non-health hazard pollutants from entering a potable water supply system when backpressure and/or backsiphonage conditions occur.The smallest, lightest, most economical, best performing, and only all stainless steel backflow preventer Deringer 20 features integral Eccentric-seal™ butterfly shutoff valves for a short lay length, and Dual-action™ checks for high performance at low- and high-flow rates